Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8662206 | Apparatus and method for making boreholes in the ground, the cross sections of which boreholes partially intersect | Hermann Josef Von Wirth | 2014-03-04 |
| 7562726 | Device for drilling a bore in the ground | Fritz Tibussek | 2009-07-21 |
| 7232113 | Draw works | Albrecht Heinrichs | 2007-06-19 |
| 6793203 | Hoisting gear | Albrecht Heinrichs | 2004-09-21 |
| 6183165 | Process and device for separation of pipes or columns fixed in the ground | Fritz Tibussek | 2001-02-06 |
| 6102139 | Device for drilling a bore hole in the ground | Fritz Tibussek | 2000-08-15 |
| 4848173 | Machine for moving workpieces and the like | — | 1989-07-18 |